Intangible Assets - Net Intangible Assets (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Intangible Assets
Gross Carrying Amount	$ 210,280
Accumulated Amortization	(6,044)
Net Carrying Amount	$ 204,236
University partner relationships
Intangible Assets
Estimated Average Useful Life	25 years
Gross Carrying Amount	$ 210,000
Accumulated Amortization	(5,838)
Net Carrying Amount	$ 204,162
Trade names
Intangible Assets
Estimated Average Useful Life	1 year
Gross Carrying Amount	$ 280
Accumulated Amortization	(206)
Net Carrying Amount	$ 74